package com.atguigu.gulimallcart.controller;

import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.gulimallcart.interceptor.CartInterceptor;
import com.atguigu.gulimallcart.service.CartService;
import com.atguigu.gulimallcart.vo.Cart;
import com.atguigu.gulimallcart.vo.CartItem;
import com.atguigu.gulimallcart.vo.UserInfoTo;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.annotation.Resource;
import javax.servlet.http.HttpSession;
import java.util.List;

@Controller
public class CartController {

    @Resource
    CartService cartService;
    /**
     * 浏览器有一个cookie ， user-key 标识用户身份
     * 如果第一次使用jd 的购物车功能，都会给一个临时的用户身份，
     * 浏览器以后保存，都会带上这个cookie
     * 第一次：如果没有临时用户， 帮忙创建一个临时用户
     * @return
     */
    @GetMapping("/cart.html")
    public String cartListPage(Model model){
        Cart cart = cartService.getCart();
        model.addAttribute("cart",cart);
        return "cartList";
    }

    @GetMapping("/changeNum")
    public String changeNum(@RequestParam("skuId") Long skuId ,@RequestParam("num") Integer num){
        cartService.changeNum(skuId,num);

        return "redirect:http://cart.gulimall.com/cart.html";
    }
    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html";
    }



    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId ,@RequestParam("check") Integer check){
        cartService.checkItem(skuId,check);

        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/addToCart")
    public String addToCart(Long skuId , Integer num, RedirectAttributes attributes){
        CartItem item = cartService.addToCart(skuId,num);
        attributes.addAttribute("skuId",skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    @GetMapping("addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId,Model model){
        CartItem item = cartService.getCartItem(skuId);
        model.addAttribute("item",item);
        return "success";
    }

    @GetMapping("/currentUserItems")
    @ResponseBody
    public List<CartItem> currentUserItems(){
        return cartService.currentUserItems();
    }
}
